Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 357 · 40 questions

What you do (Acid + base → gas): 1. Pour vinegar into the plastic bottle, standing on a tray. 2. Spoon two teaspoons of baking soda into the balloon. 3. Stretch the balloon over the bottle’s mouth, letting it hang to the side. 4. Lift the balloon so the soda drops in, and keep faces back.

1. 1.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) a seed (c) a tray for spills (d) a mirror
2. 2.🔮 Predict: you use plain water instead of vinegar. What happens? (a) a huge eruption (b) very little fizzing (c) it turns to honey (d) the balloon bursts
3. 3.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) the same bottle (b) the amount of vinegar (c) size of the balloon (d) spoons of baking soda
4. 4.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we measure it (b) we change it (c) we keep it the same
5. 5.🫧 Is curd an acid, a base or neutral? (a) neutral (b) a base (c) an acid
6. 6.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) spoons of baking soda (b) size of the balloon (c) the same bottle
7. 7.🧺 Do we need a balloon for the fizzy balloon? (a) needed (b) not needed
8. 8.🫧 Which of these is neutral? (a) soap solution (b) tamarind water (c) baking soda water (d) sugar water
9. 9.🫧 Which of these is neutral? (a) vinegar (b) salt water (c) orange juice (d) curd
10. 10.🫧 Which of these is an acid? (a) salt water (b) baking soda water (c) sugar water (d) orange juice
11. 11.🔍 Which is the odd one out? (a) vinegar (b) sugar water (c) tamarind water (d) curd
12. 12.🫧 Is lemon juice an acid, a base or neutral? (a) an acid (b) a base (c) neutral
13. 13.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) size of the balloon (b) the kind of balloon (c) the same bottle (d) spoons of baking soda
14. 14.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is the one thing we change. (a) False (b) True
15. 15.🧺 Do we need an empty bottle for the fizzy balloon? (a) needed (b) not needed
16. 16.🫧 Which of these is a base? (a) baking soda water (b) tamarind water (c) sugar water (d) salt water
17. 17.True or false: a balloon is not needed for the fizzy balloon. (a) False (b) True
18. 18.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) a magnet (c) a funnel or spoon (d) a mirror
19. 19.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) baking soda (c) a mirror (d) a funnel or spoon
20. 20.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it turns blue (b) it grows bigger (c) there is no change (d) it shrinks
21. 21.🫧 Which of these is an acid? (a) plain water (b) vinegar (c) sugar water (d) soap solution
22. 22.🫧 Is vinegar an acid, a base or neutral? (a) neutral (b) an acid (c) a base
23. 23.🫧 Is baking soda water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
24. 24.🔍 Which is the odd one out? (a) detergent water (b) plain water (c) sugar water (d) salt water
25. 25.🫧 Which of these is an acid? (a) plain water (b) salt water (c) tamarind water (d) sugar water
26. 26.True or false: plain water is neutral. (a) False (b) True
27. 27.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) a seed (c) baking soda (d) sugar
28. 28.🛟 What should you do if vinegar splashes in your eye? (a) ignore it (b) rub it hard (c) add baking soda (d) rinse with clean water
29. 29.🎈 Why does the balloon blow up? (a) the bottle shrinks (b) outside air gets in (c) gas is made inside (d) vinegar is hot
30. 30.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a battery cell (c) vinegar (d) a magnet
31. 31.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a funnel or spoon (c) a battery cell (d) baking soda
32. 32.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is the one thing we change. (a) True (b) False
33. 33.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) helium (b) oxygen (c) carbon dioxide (d) hydrogen
34. 34.🧺 Which of these is not needed for the fizzy balloon? (a) a funnel or spoon (b) sugar (c) a tray for spills (d) an empty bottle
35. 35.🫧 What do you see when baking soda meets vinegar? (a) it turns to ice (b) it glows in the dark (c) lots of fizzy bubbles (d) nothing at all
36. 36.True or false: vinegar is not needed for the fizzy balloon. (a) False (b) True
37. 37.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is kept the same. (a) False (b) True
38. 38.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is the one thing we change. (a) True (b) False
39. 39.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is what we measure. (a) True (b) False
40. 40.🧺 Which of these is needed for the fizzy balloon? (a) a seed (b) a magnet (c) a comb (d) an empty bottle

Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids